MTI Reports Data Breach Affecting Sensitive Personal Information MTI, a Massachusetts-based organization, disclosed a data breach to the state’s Attorney General after detecting unauthorized access to its network on August 2, 2025. The incident potentially compromised sensitive personally identifiable information (PII) stored within its systems. While MTI’s breach notice did not detail the nature of the security incident, an internal investigation confirmed that an unauthorized third party accessed and acquired data. The exposed information varies by individual but includes names and Social Security numbers. In response, MTI launched a review to determine the scope of the breach and identify affected individuals. Notification letters were mailed to impacted parties, outlining the specific data exposed and offering 24 months of complimentary credit monitoring services. The breach notice filed with the Massachusetts Attorney General’s office is available for reference.